3699471672513 has 6 divisors (see below), whose sum is σ = 5343681304754. Its totient is φ = 2466314448336.

The previous prime is 3699471672487. The next prime is 3699471672517. The reversal of 3699471672513 is 3152761749963.

It is a happy number.

3699471672513 is a `hidden beast` number, since 3 + 6 + 9 + 9 + 47 + 1 + 6 + 72 + 513 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2332929376449 + 1366542296064 = 1527393^2 + 1168992^2 .

It is not a de Polignac number, because 3699471672513 - 2²⁵ = 3699438118081 is a prime.

It is a super-2 number, since 2×3699471672513² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3699471672517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205526204020 + ... + 205526204037.

Almost surely, 2^{3699471672513} is an apocalyptic number.

It is an amenable number.

3699471672513 is a deficient number, since it is larger than the sum of its proper divisors (1644209632241).

3699471672513 is a wasteful number, since it uses less digits than its factorization.

3699471672513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411052408063 (or 411052408060 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The spelling of 3699471672513 in words is "three trillion, six hundred ninety-nine billion, four hundred seventy-one million, six hundred seventy-two thousand, five hundred thirteen".